Mixing device



May 23, 1950' J, woLFsQN 2,509,122

MIXING DEVICE Filed Feb. 26, 1947 MA BY a *Milf Patented May 23, 1950 FFICE MIXING DEVICE Joseph Wolfson, Hartford, Conn.` Application February 26, 1947, Serial No. 731,152' s claims; (onzas-s4) The present invention relates to improvements in mixing devices and more particularly relates to an improved mixing device adapted to mix into a stream of water or other liquid a material which may be soluble in that liquid, for instance branches I and II provide for receiving standard mixing into a water stream material such as soap, liquid or powder, DDT powder, and any degreasing compounds, or liquids such as may kill Weeds, or any type of powder poison used for plants and gardening.

The invention has for an object to produce tube.

an improved mixing device which will positively entrain desirable quantities of the material in the liquid stream with a nice regulation thereof. Another object of the invention is to provide van improved mixing device in which an improved ,form of oat valve adjustment and suspension is provided whereby the regulation and admission of the mixture to the liquid stream is more nicely controlled than heretofore.

Other objects of the invention are to reduce the cost of the mixing material by nice regulation and proper distribution thereof, to. insure uniformity of distribution of the mixture throughout the liquid stream so that uniform re,-

sults may be anticipated from separating and lthe like continuous operations, and wherein the With the foregoing and other objects in View,

the invention will be more fully described hereinafter and more particularly pointed out in the appended claims. n

In the drawings, in which like parts are denoted by the same reference characters throughout the several views,

Figure l is a side elevation of an improved mixing device constructed in accordance with the present invention and shown as connected in a liquid distribution line, partly broken away.

Figure 2 is a Itop plan view of the improved mixing device taken on an enlarged scale.

Figure 3 is a transverse vertical section taken on the line 3 3 in Figure 2.

Figure 4 is a longitudinal central verticalsec- `tion taken on the line 4 4 in Figure 2.

Referring more particularly to the drawings, IIJ and II designate inletl and outlet branches hose couplings of sections of hose indicated in broken lines at I5 and I6 in Figure 1. The hose section I5 is connected between the inlet branch IIJ of the mixing device and a faucet or other lsource of water or other liquid supply I1. The ,outlet hose section I6 is broken away as indicating that it extends to any desired destination.

v'In the inlet branch I0 is a tapered bore I8 to `decrease volume `and increase the rate of flow lsubstantially after the manner of a Venturi The upstandinglbranch I2 constitutes an inlet tfor the mixture of material which is received from a funnel I9 welded or otherwise connected to the upper end of the hollow branch I2 and interiorly opening into the same. The funnel :I9 may be of suitable size to hold a quantity of powdered or liquid material. Across the upper portion of the funnel extends an arched brace 20 having its downturned flanged ends bolted as indicated at 2| to diametrically opposite side wall portions of the funnel I9. Of course the ends of the brace 20 might be welded Ato the funnel or attached thereto in any other desired manner.

A threaded tension bolt 22 is threaded through a central portion of the brace 20 or through a nut 23 welded or otherwise secured to the brace 20 which isperforated in alignment with the nut 23 to permit the passage of the tension bolt 22 which may thus be raised and lowered by rotating the same in the one or other direction. .The lower end of the bolt 22 carries a helical or coil spring '24 the lower end of which is connected to one end of a chain 25 or other flexible connection. A ball valve 26 is afxed to the lower end of thechain and normally hangs by gravity in a position in the upstanding branch I2 substantially below the valve seat 2'! at the Y lower end of the funnel I9 where the end of the which together with a right angle branch I2 are all made preferably from a T-casting. The .branches I!) and I I may be in axial alignment and in the single embodiment shown in the drawing are arranged horizontally.

Threads I3 and I4 on .the outer ends of the funnel extends downwardly and inwardly of the upper portion of the vertical wall of the upstanding branch I2. The valve 26 is a float valve and is preferably made of cork of a diameter less than the diameter of the upstanding branch I2 whereby the material in the funnel I9 may descend past the valve 26 downwardly through the neck or branch I2 and into the stream of liquid owing through the horizontal branches I0 and II.

The parts heretofore described may be mounted in a case 28 of suitable material, for instance sheet metal or plastic and metal or other braces y29 may serve to hold the mixing device in a proper position in thecase with the upper end of the funnel I9 open to receive the material and with the threaded ends 13 and I4 of the horizontal branches l and H exposed for receiving the vpipe couplings. Of course it will be understood that the ball valve 26 may be made oi plastic or hollow metal. It is governed in its action by the tension screw 22 and the presence or absenceof water in the upstanding branch |27. When the water is shutoff at the,V4 tap or spigot I1, the water will back up in the opstanding branch l2 and float the ball 2li up against the seat 21, thus preventing water from entering the' funnel I9 and diluting the mixture therein.

flexible chain 25 permits the ball 26 to Vv:rise to.

the seat 21 in obedience to ood conditions" in" the upstanding branch I2 irrespective of the; fixed' adjustment of the screw bolt 22. When flood con-i ditions subside the ball` 26 may drop by gravity to the open position as shown in Figure 4 and the coil Spring 24v will" cushion this'flll. 'This spring Z'addstensioncto the float yball 2-6,

In use,lthe substance to be mixed with the liquid is placed in the funnel is'. Regulation ls by ro'- tating the2 screw 22f'to` raise or lower theA` ball 26 with reference'- to the seat21; The positionv of the lrball 125 is dependent upon the type of substance' usedythatiswhetliei it is powder oiliquid.

'I'f the substance isf liquid, the; port` area opened by the adjustment olf-l thef ballf 26:' is small-lisoV that liquid will drop'through the openingwithout'the aid of any added pressure. If the substantiels powder', a larger openingvis-reduird to rfeduce resistance' tothe o'wofthe powder into the The* fiow of; 'Water' 'hou'ghf theI tapered bore i8 causes an' air suctioriinI thev open end ofv the funnel.V orice, causing-ajrniiturev lof' substance and airto"bringthepressur upf' to' the original Afaucet pressure or greater thanthefaucet sure. This'devi'ce is'attachedf either to the faucet I'l, if convenient, or a few feet from-.the faucet by asmall length of hoseV l5., It is better practice t`o` placev the` mixing device" as oloseto the faucet FT aS pradtlcble, Dwingvl t0 the" that' this yields a longer hose line I6 in which everyl opportunity is giventh'e substance to withthe water en route to its destination '.When the waterisshutoii at the'nozzle-Lendthe water wiil pressthe float ball 2li-up againstv the funnel'seat 21 andkeep the Water'f'rcm mixing w'lthther stance inthe funnel-andcausev complete shut oi o'f-water I Y c 1 Y 'The' improved" device may be usedfor washing automobiles, onforspraying water and DDTmii'rt'ure on plants'. It' may" also be used-for spreading substances soluble in'water on plants'roi othi` siirfaees; It can be 'used by `gafsstations for4 car washing and spreading degreasing'mixture on the grease'spots of garage oorsbr under lifts. It may be used for cleaning'ta'nks" inidegreasingv omits of piaung andY painting pianisti;d suing' vme funnel with degreasingv compound" and, attaching to falwater unit for filling'thetank". Tlr'e'comi willenter withwater. v y While I have disclosed herein the b'est form of the Vinvention known to n'xeV atthe presentltime, I" desire'it Vto be understood'tloat'pIA reserve' the right-A to make changes `and modifications in" the herein' describedwernbodixnent of the invention provided such changes fall within the scope of the-following claims.

What I claim is: A l Y 1. A mixingdevice'cmprisinga liquidow line having a tapered section tllf'greir, anfupsltanding neckifconnecting; wintK4 triennal beyondl the smaller end of said tapered section, a receptacle for a mixing substance communicating with said upstanding neck and having a valve seat on its lower end projecting into the upper portion of said neck, a brace carried by said receptacle at its upper portion, a float valve movably mounted in said neck, and adjusting and suspending means .for said valve hung fromv said brace to gravitationially suspendjthe float valve in an open position spaced below said valve seat.

2. A mixing device as claimed in claim 1 characterized by the fact that the adjusting and suspending means compnises a screw threaded in said brace Yand a flexible connection between said screw and valve.

. 3'. A-mixingidevice according to claim 2 wherein a coil spring is interposed between the screw and tlie flexible connection.

4. A `mixing devicek according to claim 3 in 'which' said brace is".`r arched or'lbowed upwardly to raise the same *and the 'adjusting screw above any material in the receptacle.

v U5*. A curing ie-vice l as `clainieu' in claim .i -in which the receptacle is a" funnelopen atits upper end' to receive the substance and welded or other- Vwise?aflixed to theupper end of the upstanding neck throughout a circular area Spa'ced y,xl'lolwe the lower 'end of said" funnel which constitutes thevaflve See'- e mixing-device comprising substantially aug ed', met .and outlet branches, ma niet branch having a' ta'pringibor substantiallyr in tleforrnof a lfru'stu'r'n' of a cone, -asubstantially and outlet'brancfhes at the meeting point of.` the Same, ,said neckA being ,disposedat the smaller end of the taperingl bore, a funnel for thesub'- Stance' to be mixed carried bythe upper en'd oi said upstandingnck and; cmmunicatingwith said neck and having Va valve seat, in its lower ld, a float valve of smaller diameter thanV the internal diameter flthe neckmovably mounted in said neckandadapted'to close .against `said veu/estat. a'. flexible. connection' carrying said' pau vali/1?;k an `adiusti'njgl screw carrying, saidflexible coniif-iction.4 aj resilient member, connected between said screw and flexible;connecti'on,r a bowed brace spermine, the. upper portion of said funnel .and threade'diy receiving said bolt at4 a central high portion, land a case e'xtendingabont said inlet andoutlet branches, upstanding neck and funnel.

'7. A mixing device as claimedl inlell'lirn Schar# acterizedby thefact that the easeisvop'en to rgevealivthe opening in tlm widey portion of, the funnel and the inlet and outlet branches'have 4free, threaded-ends. which. extend-,beyond the ease 4for taking standard-ry hose'n couplings. 

